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3 years ago

A village school starts at 8.30am and end at 3.45pm.how long is the school day

Mathematics

2 answers:

vaieri [72.5K]3 years ago

4 0

7 hours and 15 minutes

klasskru [66]3 years ago

3 0

Answer:

7 hours and 15 minutes.

Step-by-step explanation:

Draw a timeline for this question.

8.30 + 7 hours = 3.30pm or 15 30

3.30 + 0.15 minutes = 3.45 or 15 45

7 hours + 0.15 minutes = 7 hours and 15 minutes.

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The right isosceles triangle PQR has vertices P(3, 3), Q(3, 1) and R(x, y) and is rotated 90 degrees counterclockwise about the

Jlenok [28]

For the answer to the question above, since the triangle is isosceles, the two legs have equal length. The coordinates of two vertices are given
P(3,3)
Q(3,1)
Assuming that PQ and QR are the legs of equal length, the distance between Q and R must be the same as the distance between P and Q
d = √[(3-3)² + (3-1)²
d = 2
Therefore, the coordinates of P is
(5,1)

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2 years ago

Determine if the function is a polynomial function. If the function is a polynomial function, state the degree and the leading c

antoniya [11.8K]

Answer:

Wikipedia defines polynomials as "<em>an expression consisting of variables and coefficients</em>."

You would think that F(x) would not be a polynomial, but you could think of it like this:

F(x) = 0x + 1050

So, yes, I suppose constant terms by themselves are polynomials, it's just that they only have one term and would not really be called a <em>poly</em>-nomial.

You should probably research some more just in case.

5 0

3 years ago

Solve for x 6x^2 +7x=20

Sunny_sXe [5.5K]

Answer:

x=4/3 , x=-5/2

Step-by-step explanation:

6x^2 +7x=20

6x^2+7x-20=0

(3x−4)(2x+5)

3x-4=0 , 2x+5=0

3x=4 , 2x=-5

x=4/3 , x=-5/2

6 0

3 years ago

The symphonic choir and the jazz choir are recording songs for an album. The album can be no more than 72

Brut [27]

Answer:

The maximum number of songs that the symphonic choir can record is 14

Step-by-step explanation:

Let

x ----> the number of songs of the symphonic choir

we know that

The number of songs of the jazz choir multiplied by its average time per song plus the the number of songs of the symphonic choir multiplied by its average time per song, must be less than or equal to 72 minutes

The inequality that represent this situation is

$3(7)+3.5(x)\leq 72$